Type cylinder printing device



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TYPE CYLINDER PRINTING DEVICE Filed June 3, 1932 4 Sheets-Sheet l In ventar:

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May 21, 1935. E. G. RIX

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May 21, 1935. E 5 mx TYPE CYLINDER PRINTING DEVICE Filed June 3, 1932 4 Sheets-Sheet 4 UNITED STATES PATENT OFFICE 2,001,890 TYPE CYLINDER PRINTING DEVICE Edward G. Biz, Chicago, 111., minor to The International Check Endorser 00., Chicago, 111., a corporation of Illinois Application June 3, 1932, Serial No. 615,164

6 Claims. (Cl. 101-350) My invention relates to type cylinder printin The scraper roller '9 is mounted in leaf spring devices. bearings I2 which press it against the rubber One of the objects of my invention is to improve roller 6. The tension in these leaf spring bearthe operation of the clutch control and stop for ings may be adjusted by means of adjusting screws the type cylinder, l3 threaded in the ink-well 3. The wooden 5 Afurther object is to provide an improved drive spool 1 also is mounted in leaf spring bearings for the ink roller. l4 which press it with a yielding pressure against Another object is to provide an improved ink the rubber roller. The rubber roller itself is distributing construction. driven from the motor by means of a flexible Further objects will be apparent from the deshaft l5 which permits up and down adjustment l0 scription and claims. of the ink-well to secure just the right degree of In the drawings, in which my invention is 11- contact between the rubber roller and the type on lustrated: the type cylinder. This flexible shaft also en- Figure 1 is a plan view; ables the proper adjustment to be made when Fig. 2 is a section on the line 22 of Fig. 1; the ink roller is removed and reground. 15

Fig. 3 is a vertical axial section through the I have found that it is desirable to form the type cylinder and ink roller; wooden roller with a reduced central portion I6 Fig. 4 is a detail of the clutch construction; in order to get just the right amount and distri- Fig. 5 is a further detail of the clutch construcbution of ink on the rubber rolller 6. The vertion; tical adjustment of the ink-well 3 to which ref- 20 Fig. 6 is a vertical part-sectional view of the erence was made may be accomplished by means drive for the type cylinder and ink roller; of a pair of screws l1, one on each end of the Fig. 7 is a horizontal sectional view substanink-well, each screw having its upper end swiveled tially on the line 1'I of Fig. 6; in the framework I8 of the machine and having its Fig. 8 is a vertical sectional view substantially lower end threaded into a laterally-extending lug 25' on the line 8--8 of Fig. 9; and IS on the ink-well. By swiveling the screw in Fig. 9 is a plan view of the ink well and ink-disits mounting, the ink-well may be adjusted up tributing construction. or down to get just the right amount of contact The construction shown comprises a type cylbetween the rubber roller and the type cylinder. inder I, a rubber platen roller 2 yieldingly pressed Strong compression springs 20 may be provided to 30 toward the type cylinder, an ink well or reservoir hold the ink-well down as far as the head of the 3, means for supplying ink from the well to the swiveled. screw will allow it to go, thus preventing type cylinder as it rotates, a motor 4, and trans-l any jiggling up and down of the ink-well. mission 5 from the motor to the type cylinder and The transmission 5 from the motor 4 to the rubto the ink-supplying means. ber roller 6 comprises, in addition to the flexible 35 The ink-supplying means comprises a rotatable shaft l5 aforementioned, a worm 2| on the vertirubber roller 6 for engaging the'type on type cal shaft 22 of the motor and a worm gear 23 cylinder I and a rotatable wooden spool I about driven by this worm secured on the flexible shaft. half submerged in the ink in the ink-well and This worm maybe mounted inasuitable anti-fric spring-pressed against the rubber roller. tion bearing member 24 secured to the side frame 40 In order to spread and distribute the ink even- 25 of the machine. ly over the rubber roller 6, an intermittently ro- The transmission from the electric motor to the tatable scraper member 8 is provided, the roller type cylinder comprises a second worm 26 mountportion 9 of which is spring-pressed against the ed on the vertical motor shaft 22 and a worm gear rubber roller and the end of which is provided 21 driven by this worm and mounted on the horiwith a spur gear Ill which is intermittently adzontal shaft 28 of the type cylinder I. vanced by means of a Geneva toothed gear ll Means are provided for connecting and disconrotatable with the rubber roller 6. This intermitnecting the type cylinder from its drive and stoptent advance of the scraper roller prevents ping it in a definite position controlled by the any collection of lint or foreign material at the insertion of the check or other paper to be printed. 50 line of contact between the scraper and the rub- The clutch and stop mechanism itself is subber roller and the relative motion between the stantially the same as that disclosed in the applirubber roller and the scraper roller results in a cation of Lyman and Fischel, Serial No. 384,647, scraping action which spreads the ink in a thin filed August 9, 1929. The check or paper control evenly distributed film over the rubber roller. for this clutch and stop mechanism is designed 55 so that it will operate on very light pressure by the edge of the check or paper but will nevertheless give a strong, reliable movement to the clutch and stop controlling mechanism. This desirable result is accomplished by providing a power device controlled by the'paper for operating the clutch and stop controlling mechanism.

In general, the clutch and stop mechanism comprises an oscillatable clutch member 29 rockably mounted on a collar 30 secured to the type cylinder shaft 28, and a rock arm 3| pivotally mounted at 32 and having a clutch throw-out and stop finger 33 for throwing out the clutch and stopping the type cylinder in just the right position. This throw-out and stop finger cooperates with a wedge formation ,34 on the oscillatable clutch member 29 and with a shoulder formation on the type cylinder. A coil compression spring 36 tends to hold the control finger 33 down against a curved surface 31 on the stop plate which rotates with the type cylinder. Assuming that the finger 33 has been lifted to allow the clutch to engage and that the type cylinder is therefore being rotated, it will continue to rotate until the wedge formation on the clutch member engages the side of the control finger, whereupon the wedge formation will cause the clutch to be moved to disengaging position. The clutch disengagement will take place shortly before the shoulder on the shoulder plate engages the control finger but the momentum of the type cylinder will carry it on until the shoulder formation engages the control finger which stops it in a definite position.

The paper-controlled release mechanism for the control finger comprises a yoke-shaped rock member 38 having a pair of fingers 39 located in position to be engaged by the edge of the paper as it is drawn between the type cylinder and platen, a pair of electrical contacts 40 moved'into engagement with each other by the cross bar 4| of the yoke member as it is rocked about its pivotal mounting at 42, an electromagnet 43 controlled by the contacts, and transmission 44 from the electromagnet to the rock member on which the control finger 33 is formed. This transmission may be simply a yoke 45 connected with the armature of the electromagnet and having a pivotal connection at 46 with the rock member.

In operation, when the slip of paper is passed between the type cylinder and platen, it depresses the fingers 39 of the yoke member 38, lifting the cross bar 4| of the yoke member and bringing the two contacts 40 together. This energizes the electromagnet 43, causing the control finger 33 to be lifted to release the controlfinger from the stop shoulder and allow the clutch spring 41 to throw the oscillatable clutch plate 29 into connecting position. The type cylinder l is then given one complete rotation, being released and stopped, as previously described.

Further modifications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the prior art and the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means for driving saidroller at the same surface speed as said type cylinder, a rotatable scraper engaging said roller for spreading the ink on said roller, and means for rotating said scraper in the opposite direction to that of the roller at less average surface speed than the surface speed of the roller whereby the ink will be spread and foreign material such as lint and grit will be released from the scraper as the scraper rotates.

2. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means for driving said roller at the same surface speed as said type cylinder, a scraperengaging said roller for spreading the ink thereon, and means for effecting movement of said scraper in a direction to enable foreign material such as lint and grit to pass between the roller and scraper.

3. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means for driving said roller at the same surface speed as said type cylinder, and means whereby the roller may be adjusted toward and from the type cylinder, said driving means comprising a flexible shaft.

4. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means whereby the roller may be adjusted toward and from the type cylinder, and means for driving said cylinder and roller comprising a worm shaft, two worm gears driven from said worm shaft, and transmission from one worm gear to the cylinder and from the other worm gear to the roller.

5. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means whereby the roller may be adjusted toward and from the type cylinder, and means for driving said cylinder and roller comprising a worm shaft, two worm gears driven from said worm shaft, and transmission from one worm gear to the cylinder and from the other worm gear to the roller, said roller transmission comprising a flexible shaft.

6. A mechanism for supplying ink to a type cylinder rotatable about a horizontal axis comprising an ink reservoir, an ink supply roller rotatable about an axis parallel to the type cylinder and engaging said type cylinder, means for driving said roller at the same surface speed as said type cylinder, said roller being rotatably mounted on said reservoir, means whereby said reservoir may be adjusted toward and from the cylinder to vary the distance of the axis of the roller from the cylinder, and a flexible shaft for driving said roller.

EDWARD G. RIX. 

